Use birth rates, death rates, emigration rates, and fertility rates to explain a current example of the population dynamics in a nation's human population. Choose the nation you want to describe.
What will be an ideal response?
General trends, not numbers, should be included. There are three basic trends: 1) Rapidly growing countries - characterized by high birth and death rates, high fertility rates, and typically, high emigration rates 2) Stable populations - characterized by low birth and death rates, low fertility rates, and low emigration rates 3) Negative growth countries - characterized by death rates higher than birth rates, (however, both are low), extremely low fertility rates, (typically less than the 2.1 replacement rate) and low emigration rates
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The average salinity of typical seawater is ________
A) 0.35% B) 2.0% C) 3.5% D) 10% E) 25%
In the 19th century, the geologic time scale was based primarily on rock exposures and the
sequence of fossils in the rock record. Indicate whether the statement is true or false.
?Scientists are human and not always free of bias about their own results and hypotheses.
Answer the following statement true (T) or false (F)
The original rocks must have been brittle in order for them to bend and mold under stress.
Answer the following statement true (T) or false (F)